[1]ZHANG Xi-wang,WU Bing-fang.Assessment of Water Erosion Based on SPOT5 in the Upstream Area of Miyun Reservoir[J].Research of Soil and Water Conservation,2010,17(05):17-20,25.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
17
Number of periods:
2010 05
Page number:
17-20,25
Column:
Public date:
2010-10-20
- Title:
-
Assessment of Water Erosion Based on SPOT5 in the Upstream Area of Miyun Reservoir
- Author(s):
-
ZHANG Xi-wang1,2, WU Bing-fang2
-
1. College of Environment & Planning of He’nan University, Kaifeng, He’nan 475004, China;
2. Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China
-
- Keywords:
-
soil erosion assessment; GIS; RS; Miyun reservoir
- CLC:
-
S157
- DOI:
-
-
- Abstract:
-
The paper extracted vegetation fraction and land use information from SPOT5-10 m multi-spectral images, and extracted slope information from DEM obtained from 1:50000 topographic map, and assessed the soil erosion risk according to the national professional standard of SL190-96 Standards for classification and Gradation of Soil Erosion. Subsequently we compared to the result of the second remote sensing investigation of soil erosion in China using Landsat TM in 2000. The results show that: (1) the overall erosion status is better than that of 2000, but more severe and extremely severe erosion appear in the study area. (2) From the elevation and slope zone, the elevation zone above 1 700 m has lowest erosion, and the zone between 500~800 m has the highest erosion; the slope zones less than 5° and greater than 35° have the highest erosion and the slope zone between 15° and 25° has the lowest erosion. These results will be used to assist the management department decision-making.